Groupsrv.com is closed!

After nearly 11 years, I’ve finally decided to pull the plug on Usenet archive: Groupsrv.com.

The page you have requested no longer exists!

But don’t panic just yet!

I’ve coded this page in a way, that it’s monitoring each redirect & capturing data about the thread you’ve requested. Page you’ve requested is still available in Google’s Usenet Archive. You should be able to access it using following URL:

Note: I can’t guarantee that all Groupsrv.com pages can be found in Google Groups, but over 90% of the content should be there. If not, try the resources below!

Wikipedia:Precovery! – available, which is only sufficient for a preliminary (imprecise) orbitcalculation. When an object is of particular interest (such as asteroids withR. Paul Butler! – As a high school student in 1977, Dr. Butler learned techniques of orbitcalculation when he attended the Summer Science Program. List of stars with confirmedEquatorial coordinate system! – small periodic oscillations of nutation). Commonly used in planetary orbitcalculation. True equinox of date is the intersection of the ecliptic of "date"X/1872 X1! – Pogson believed the object to be the lost Comet Biela, but subsequent orbitalcalculations have suggested that this was unlikely. Neither Biela’s Comet norC/1769 P1! – calculating the comet’s elliptic orbit. Using observations over 101 days in 1769, four decades later Bessel in 1810 calculated an orbit for the comet inclined